using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

public class MessageBox : MonoBehaviour
{
    public static MessageBox instance { get; private set;}
    void Awake(){
        if(instance != null){Destroy(gameObject);}
        instance = this;
        canvasGroup = GetComponent<CanvasGroup>();

        closeButton.onClick.AddListener(()=>{SetActive(false);});
    }

    private CanvasGroup canvasGroup;
    [SerializeField]private Text messageTxt;
    [SerializeField]private Text titleTxt;
    [SerializeField]private Button closeButton;
    void Start()
    {
        DontDestroyOnLoad(gameObject);
        SetActive(false);
    }

    void SetActive(bool value){
        // StartCoroutine(setActive(value));
        canvasGroup.alpha= value ? 1 : 0;
        canvasGroup.blocksRaycasts = value;
        canvasGroup.interactable = value;
    }
    private static string message;
    public static void ShowMessage(string message,string title = "Notice"){
        if(instance == null){Debug.LogError("Message was shown before message box was init");return;}

        instance.showMessage(message,title);
    }

    public void showMessage(string _message, string title){
        message = _message;
        titleTxt.text = title;
        StartCoroutine(_showMessage());
        SetActive(true);
    }

    IEnumerator _showMessage(){
        messageTxt.text = "";
        closeButton.gameObject.SetActive(false);
        for(int i=0; i < message.Length; i++){
            messageTxt.text += message[i];

            yield return new WaitForSeconds(0.02f);
        }
        closeButton.gameObject.SetActive(true);

    }
}